<h1>Show hidden items</h1>
<p>Specifies how hidden grade items are shown. If Hide is selected, they are hidden completely. If Show is selected, the hidden grade item row is shown in grey with the grade hidden completely. If "Only hidden until" is selected, grade items with a "hide until" date set are shown in grey with the grades hidden completely until the set date, after which the whole item is shown.</p>
